Actuating mechanism for sliding vane variable geometry turbine

Details Actuating mechanism for sliding vane variable geometry turbine Actuating mechanism for sliding vane variable geometry turbine

1999-09-22

2000-12-12

Lopez, F. Daniel

Rotary kinetic fluid motors or pumps

Selectively adjustable vane or working fluid control means

Upstream of runner

415166, F01D 1714

Patent

active

06158956&

ABSTRACT:
A variable geometry system for a turbocharger includes a sliding piston disposed within a turbine housing between a primary exhaust gas volute and turbine blades. The sliding piston is axially displaceable within the turbine housing to increase or decrease the volumetric flowrate of exhaust gas to the turbine. The sliding piston is positioned by an actuator having reciprocating movement translated through a rotating sleeve with a first pin engaging a helical slot for axial motion of the piston and a second pin engaging an alignment slot for maintaining axial alignment of the piston.

REFERENCES:
patent: 4499732 (1985-02-01), Szczupak et al.
patent: 4586336 (1986-05-01), Horler
patent: 4984965 (1991-01-01), McKean
patent: 5214920 (1993-06-01), Leavesley

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